Fig. 4.

Ancestral state reconstruction of self-sterility among 435 angiosperm families of (A) ANITA grade + Magnoliids+ monocots + Commelinids, (B) Eudicots + core Eudicots + Asterids and (C) Rosids sections using the phylogeny and calibration given in Soltis et al. (2011). Families were classified as possessing self-compatibility (SC), stigmatic, stylar, or ovarian SI, post-fertilization SS, or as having heteromorphic and heteromorphic + SI, or as being polymorphic because multiple types of SS/SI have been noted in the family. Families considered to be self-sterile but for which the SI has not been confirmed are classified as possessing self-sterility (SS unclassified), while those for which no breeding information is available are described as unknown. Divided internal nodes with different colours represent equivocal reconstructions in different states optimized by maximum parsimony.